关于中文部首,請見「
爪部」。
爪(Claw),又稱爪子或鉤爪,是羊膜动物(哺乳類、鳥類及爬蟲類)於手指及腳趾末端的表皮角質層附加物。
参考资料
- Maddin & al. (2009): The anatomy and development of the claws ofXenopus laevis (Lissamphibia: Anura) reveal alternate pathways of structural evolution in the integument of tetrapods. Journal of Anatomy, no 214 (4): pp 607-19 Abstract (页面存档备份,存于互联网档案馆)